wattsbar-publisher

GET /cam              live camera snapshot (3s freshness, edge-cached)
GET /cam-status       cam pipeline health (5s freshness)
GET /og.jpg           OG card image (5min refresh)
GET /publish          force refresh weather + cam
GET /publish-tva             force refresh tva.json (gated; inline budget)
GET /publish-site-meta       re-publish site manifest.json + schema.json (gated)
GET /publish-lake-meta       re-publish lake manifest + schema + frozen dict + index
GET /publish-lake-analytics  re-run analytics + re-stamp archive excluded flags
GET /health           liveness ping

JSON feeds live on R2 (data.watts.bar):
  https://data.watts.bar/weather.json
  https://data.watts.bar/tva.json
  https://data.watts.bar/sky-palette.json
  https://data.watts.bar/cam-status.json